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Neanderthals are believed to have relied on dangerous close range hunting techniques, using non-projectile weapons like the thrusting spears depicted in this artist's rendition. Gleiver Prieto & Katerina Harvati hide caption

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Gleiver Prieto & Katerina Harvati

Downtown Houston flooded by rain from Hurricane Harvey on Aug. 29, 2017. The buildings in the region exacerbated rainfall from the storm, according to a new study. David J. Phillip/AP hide caption

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David J. Phillip/AP

Houston Got Hammered By Hurricane Harvey — And Its Buildings Are Partly To Blame

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This bright meteor was seen in the sky above Wrightwood, Calif., during the Leonid meteor storm of 1966. Storms are more intense than showers, but every year Leonid meteors streak across the night sky in November. NASA/Getty Images hide caption

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NASA/Getty Images

Helping a spouse or parent who has dementia steer clear of hazards can include ridding the home of all guns. Nicole Xu for NPR hide caption

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Nicole Xu for NPR

Firearms And Dementia: How Do You Convince A Loved One To Give Up Their Guns?

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Forged in 1879 and sanctioned by the General Conference on Weights and Measures at its first meeting, Le Grand K, the international prototype of the kilogram, has been kept under lock and key in a vault outside Paris. BIPM hide caption

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BIPM

Say Au Revoir To That Hunk Of Metal In France That Has Defined The Kilogram

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Camila Vargas-Restrepo/NPR

Zipcode Destiny: The Persistent Power Of Place And Education

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Chris and Nancy Brown embrace Monday while looking over the remains of their burned residence after the Camp Fire tore through the region in Paradise, Calif. Dozens of people have been killed in the latest fires to hit the state. Josh Edelson/AFP/Getty Images hide caption

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Josh Edelson/AFP/Getty Images

Megafires More Frequent Because Of Climate Change And Forest Management

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Humans would do better to accept many of the life forms that share our space, than to scrub them all away, says ecologist Rob Dunn. Basic Books hide caption

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Basic Books

Counting The Bugs And Bacteria, You're 'Never Home Alone' (And That's OK)

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Protestors holding pictures of people who died from use of paint removers, including Drew Wynne, protest outside a Portland, Maine, Lowe's store on May 10, 2018. They were trying to persuade the retailer to stop selling paint strippers containing methylene chloride. Ben McCanna/Portland Press Herald via Getty Images hide caption

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Ben McCanna/Portland Press Herald via Getty Images

Retailers Plan To Clear Deadly Paint Removers From Shelves, As EPA Delays Ban

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Taking fish oil supplements to prevent cardiovascular disease and cancer may not be effective, a new study suggests. Cathy Scola/Getty Images hide caption

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Cathy Scola/Getty Images

Vitamin D And Fish Oil Supplements Mostly Disappoint In Long-Awaited Research Results

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Nicole and Ben Veum, with their little boy, Adrian. Nicole was in recovery from opioid addiction when she gave birth to Adrian, and she worried the fentanyl in her epidural would lead to relapse, but it didn't. Adam Grossberg/KQED hide caption

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Adam Grossberg/KQED

Childbirth In The Age Of Addiction: New Mom Worries About Maintaining Her Sobriety

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Mourners comfort each other Thursday during a vigil at the Thousand Oaks Civic Arts Plaza for the victims of the mass shooting at Borderline Bar and Grill in Thousand Oaks, Calif. Kevork Djansezian/Getty Images hide caption

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Kevork Djansezian/Getty Images

Another Mass Shooting? 'Compassion Fatigue' Is A Natural Reaction

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